//
//  NSString+LSS.h
//  ai2ban
//
//  Created by Heartbeats on 2018/1/26.
//  Copyright © 2018年 mac book pro. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSString (LSS)
-(BOOL) isNull;
+(NSString *)md5:(NSString *) input;
@end
